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 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
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/*
 * @test
 * @bug     4916620
 * @summary legal cast is rejected
 * @author  Christian Plesner Hansen
 * @compile/fail -Xlint:unchecked -Werror T4916620.java
 * @compile -Xlint:unchecked T4916620.java
 */

public class T4916620 {
    static class BB<T, S> { }
    static class BD<T> extends BB<T, T> { }

    void f() {
        BD<Number> bd = new BD<Number>();
        BB<? extends Number, ? super Integer> bb = bd;
        Object o = (BD<Number>) bb;
    }
}
